Spool.



' No. 898,398. PATENTED SEPT. 8, 1908.

F. B. WOOD.

APPLICATION 020.12, 1907.

FREDERIC BRUCE WOOD, OF

FIBER SPOOL COMPANY,

PROVIDENCE, RHODE ISLAND, ASSIGNOR TO RHODE ISLAND OF BOSTON,MASSACHUSETTS, A CORPORATION OF MAINE.

SPOOL.

Specification of Letters Patent.

Patented Sept. 8, 1908.

Application filed December 12, 1907. Serial No. 406,235.

To all whom it may concern:

Be it known that I, FREDERIC B. Woon, of Providence, county ofProvidence, State of Rhode Island, have invented an Improvement inSpools, of which the following description, in connection with theaccompanying drawings, is a specification, like characters on thedrawings representing like parts.

This invention relates to spools and is an improvement upon the spoolshown in Letters Patent it 782942 dated February 21, 1905 granted tome.The spool shown in said patent is designed and intended to bepractically indestructible, yet light in weight, and inexpensive tomanufacture. Sometimes the heads of the spools are made very large indiameter and in such case much di1ficulty has been encountered in makingthem stfong enough to withstand the rough usage to which the spool issubjected. It made prolportionately thicker they are correspondmg 3costly and owing to their are more liable to become spools are thrownabout. Therefore, this means for strengthening the heads has not provedentirely satisfactory.

have invented means for strengthening the heads so that they may be madequite thin and yet capable of withstandihg rough usage to which thespool is subjected.

This invention consists in providin the heads of the spool withreinforcing p ates; and in so constructing the reinforcing plates thatthey maybe a plied to the heads in such manner as to a 0rd the ofreinforcement; and in so constructing the reinforcing plates that theyvery thin and yet suitab y heads.

My invention also has for its object to provide I means for securing thereinforcing plates in position on the spool and to so construct saidmeans that for convenience and simplicity the same means may be employedfor securing both the heads and thereinforcing plates to the barrel ofthe spool. v

In the spool shown in the patent the corrugated barrel has plain oruncorru ated end ortions which are cut to form ovetailed ngers or wedgesand the heads are each formed with a center hole to receive theuncorrugated end of the barrel and to enable increased Weight brokenwhen the reinforce the Y drical body and a tapering head.

heavier and are cumbersome and alsov greatest degree may be made of t.the ends of the barrel must them to rest against the ends of theoutward corrugations on the barrel which form shoulders. Said centerhole is partially counterbored and the end portions of the dovetailfingers are bent or flared outwardly to engage the counterbored ortionof the center hole by a plug which is riven into the end of the barreland which is formed with a cylin- The end portions of the dovetailedfingers are intended to be embedded or set into the counterboredportions of the heads to prevent the same from turning and also into theplug to form wedges to hold the plug and prevent the heads from comingoff. When the material composing the heads is made harder than thematerial composing the plug, then the fingers sink into the plug insteadof into both the plug and head and consequently the head is not reventedfrom turning. Furthermore, onlythe end portions of the fingers areutilized as wedges, and being quite short do not obtain as firm a gripon the plug and head as is desired. Furthermore, the head merely restingagainst the ends of the corrugations on the barrel the yarns are liableto be drawn into thenarrow spaces between the ends of the corrugationsand the head which is objectionable.

Therefore another object of my invention is to rovide for overcomingthese objections, by providing'the head with a key by which it isrevented from turning, by counterborin t e center hole from side to sideof the hea and correspondingly-tapering the head of the lug so thattlldOVB-titll fingers may be ut' ized as Wedges for their entireylength, and corrugations the head.

In addition to the numerous advantages set forth in the patent for theem loyment of a corru ated barrel such a barre is slightly expansi lediametrically and will better enby embedding the ends of the on thebarrel in thematerial of gage and hold the cyl ndrical body of thebenefit of this function e corrugated barrel the plain portionsat esplit opposite one or more of the outward corrugations. The barrel isthus provided with expansible plu but to derive the end ortions.

T erefore another object of my resent invention is to provide the barrel0 the spool with expansible end portions adapted to be abruptly at theuncorrugated portions 3 and expanded into the center hole of the headsby the plugs which are driven into the ends of the barrel.

Figure 1 shows in front elevation and partial section a spool embodyingthis invention. Fig. 2 is an end view and partial section of the spoolshown in Fig.1. Fig. 3 is a transverse section of the barrel of thespool taken on the dotted line Fig. 1. Fig. 4 is a detail of one of theheads showing the counterbored center hole and key. Fig. 5 is anenlarged detail showing the end of one ofthe corrugations embedded inthe material of the head, and also showing the s lit uncorrugated end ofthe barrel opposite the end of one of the outwardly extendedcorrugations. Fig. 6 is a sectional detail showing the dovetailedfingers embedded in the plug and head. g

1-1 are flat circular disks which serve as the heads of the spool. Theseheads are each provided with a center hole 8 which is counterbored fromend to end or from side to side of the head, and at said center hole akey 20 is provided which consists of a portion of the head rojectingl ashort distance into the center ole. T e end of the key isior may bebeveled.

2 represents the corrugatedtubular barrel havin lain or uncorru atedends 3.. Theoutwar corrugations of the barrel terminate the ends of saidoutward corrugations form shoulders 4. at such points. The uncorrugatedend portions are cut to form dovetailed fingers 5. Said end ortions areof suitable diameter to project t rough the center holes in the heads,and the dovetailed fingers are made long enough to extend entirelythrough said holes and even may project a short'distance at the oppositesides of the heads. The uncorrugated end portions of the barrel aresplit, as at 22 see Fig. 5., atone or more points opposite one 'ormoreof the outward corrugations and between'the dovetailed fin ers, toenable the end ortions to be ex an ed and thereby rovide fbr expanding te end portions of t e barrel when the plugs, to be described, are driveninto the ends of the barrel. They mafi be split by driving in thetapered lugs or t ey may have been previously split y any suitablemeans.

25 represents one of the reinforcing lates,

which are provided for the pur ose o re1n-' late is made smaller indiameter than the ead so that its outer edge will engage the head at apoint substantially midway be= tween the edge of the center hole and theouter edge of the head, such point of engage- 'ment being remote fromthe center hole, but this point of engagement may be varied according tothe relative sizes of the head and reinforcing plate. The inner edge ofthe plate, at. the center hole, is offset or depressed, as at 27*, so asto engage the plug at a point a short distance from its end, and as theplug is tapered the reinforcing plate, thus offset will be very securelyheld by it preferably under sufficient pressure to give a spring effect.i

The lu consists'of a tapered head 6 and a cylindrica body. 7. Thetapered head is made of suitable diameter to fit the center holes in thereinforcing plate and head and is made long enough to project entirelythrough the center holes of both the reinforcing plate and the head, andthe cylindrical body is made of suitable diameter to snugly fit theopening in the end of the barrel and long enough to project into thebarrel a considerable distance. The lug is driven into the end of thebarrel witii a severe pressure and acts to hold the parts assembled andalso to flare outwardly the several dovetailed fingers, causing them tobecome embedded in the material of the plug, and slightly into thematerial of the head; also causing the key to become wedged between orbythe dovetail fingers so as to holdthe head from turning.

As the center hole in the head is counter bored from end to end and thetapered head extends entirely throu h the head, the dovetailedfingerswill be ared outwardly from end to end and will become embeddedin the head for their entire length. The head is driven into the barrelfar enough to fore the ends of the outward corrugations on the barrelinto'the material of the head to thereby embed themtherein.

In case it is not desired to embed the ends of the outward corrugationsin the material of the head said head will not be driven so far and insuch case will merely rest against the ends of the corrugations. v

In addition to securing the parts together by means of the taperedplugs, the barrel is punctured at each end at points between the outwardcorrugations, to thereby form spurs 30, which project inwards into thematerial of the cylindrical'bod of the plugs.

Having thus descri ed my invention, what I claim as new and desire tosecure by Letters Patent is I 1. In a spool, a barrel, headson its endshaving center holes, reinforcin -plates for said heads also havingcenter oles made larger in diameter than the center holes in the heads,and plugs having tapered heads for engaging the aforesaid heads andplates, said pugs projecting through the holes in the p ates and headsentering the barrel parts assembled, substantially as gagement with theheads, substantially as described.

3. In a spool, a barrel, heads on its ends having center holes,reinforcing plates for said heads also having center holes made largerin diameter than the center holes in the heads, plugs adapted to bedriven into the ends of the barrel having tapered heads which engageboth the reinforcing plates and the heads, substantially as described.

.4. In a spool, a barrel having a plurality of dovetailed fingers, headson its ends, reinforcin plates for said heads, Wedgin plugs for hoIdingsaid reinforcing plates in in engagement with the heads and for alsosecurmg the heads to the barrel, said plugs being he (1 against relativemovement by thedovetailed fingers which are embedded thereinsubstantially as described.

5. In a spool, a tubular corrugated barrel having uncorrugated ends, theends of the outward corrugations forming'shoulders at the junction withthe uncorrugated ends, and heads placed on said uncorrugated ends I intoone side of which the ends of the outward corrugations are embedded,substantially as described.-, 7

6. In a spool, a tubular corrugated barrel having uncorru ated ends,split at a oint opposlte the en s of one of the outwar cor rugations,heads placed on said uncorrugated ends, and plugs driven into the endsof the barrel which expand both the corrugated and uncorrugated endIportions of the barrel, f substantially as descri 7. In a spool, abarrel having a shoulder and havin a plurality of dovetailed fingersextending eyond said shoulder, a head having a center hole to receivesaid fingers which is counterbored from end to end, and a lug havin a taered head'adapted to be driven into t e en of the barrel, its taperedhead extending entirely through the counterbored center hole and actingto flare outwardly saidfin ers and embed them in the material of the pdescribe V a 8. In a spool, a barrel having a shoulder and having aplurality of outwardly extended dovetailed fingers, a head having acenter hole shaped to provide an-inwardly extended portion at one sideof it, forming a key, and a plug driven into the end of the barrelhaving a tapered head for forcing the fingers outwardly into en agementwith the head and key, substantiaIly as described.

9. a spool, a barrel, heads on its ends having center holes, dishedreinforcingplates for said heads having central offset portions formedwith center holes of a diameter larger than the diameter of the centerholes in the heads, the edges only of said plates engaging the headsremote fromthe center thereof, and plugs projecting into and enga ingthe ends ofthe barrel having tapered eads which project throu h thecenter holes of both the heads an reinforcing plates, substantially asdescribed.

10. A spool having a hollowcorrugated metal barrel and annular headsoftough fibrous material, and an annular spring plate of tough, fibrousspringy material for reinforcing each head, combined with wed 'ng plugsdriven through the holes in each p ate and head and into the ends of thebarrel which ex and the ends of the barrel and hold the plhtes, heads,barrel and plugs firmly in place, substantially as described.

u'g from end to end, substantially as n testimony whereof, I have signedmy name to this specification, 1n the presence of two subscribinwitnesses.

FR DERIC BRUCE WOOD. Witnesses: 1

WM. E. EVANS, LEONARD B. BUCHANAN.

